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Polaron relaxation and variable-range-hopping conductivity in the giant-dielectric-constant material CaCu3Ti4O12

✍ Scribed by Zhang, Lei; Tang, Zhong-Jia


Book ID
119968552
Publisher
The American Physical Society
Year
2004
Tongue
English
Weight
86 KB
Volume
70
Category
Article
ISSN
1098-0121

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## Abstract CaCu~3~Ti~4–__x__~ Nb__~x~__ O~12~ (__x__ = 0, 0.01, 0.08, 0.2) ceramics were fabricated by a conventional solid‐state reaction method. The ceramics showed the body‐centered cubic structure without any foreign phases and the grain size decreases with Nb doping. Two Debye‐type relaxation